Hasty n. : Involving haste; done, made, etc., in haste; as, a hasty sketch.

Hasty n. : Demanding haste or immediate action.

Hasty n. : Moving or acting with haste or in a hurry; hurrying; hence, acting without deliberation; precipitate; rash; easily excited; eager.

Hasty n. : Made or reached without deliberation or due caution; as, a hasty conjecture, inference, conclusion, etc., a hasty resolution.

Hasty n. : Proceeding from, or indicating, a quick temper.

Hasty n. : Forward; early; first ripe.

Example:
What pokemon do I breed with my infernape to get a Hasty nature?

Taxonomy
Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, adjective, Custom Search, glossary, english, language, ESL, Search, Inflected, 14th century, movement, examination, wound, anger.

Defination from the web:
hasty from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... 1 a archaic : rapid in action or movement : speedy b : done or made in a hurry c : fast and typically superficial <made a hasty examination of the wound> ...